Encrypting files using GNU Privacy Guard (GnuPG or GPG) - Command line example

encryp_file_gpg.py

import sys
import gnupg

def main():
    path_home = sys.argv[1] 
    path_file_input = sys.argv[2]
    path_file_output =  sys.argv[3]

    gpg = gnupg.GPG(gnupghome=path_home)
    key = gpg.list_keys()

    with open(path_file_input, 'rb') as file:
        encrypted = gpg.encrypt_file(file, recipients=key.uids,
                                     always_trust=True, output=path_file_output)

    if not encrypted.ok:
        raise encrypted.stderr

if __name__ == "__main__":
    main()

Command line example

krescruz@localhost:~$ encryp_file_gpg.py "/path/home/gpg" "path/file/input.txt" "path/file/out.txt.gpg"